Method for manufacturing a marine sail

Abstract

The present invention belongs to the technical field of marine sail manufacturing, and particularly relates to a manufacturing method for marine sails. It includes an upper mold assembly and a lower mold assembly, which are detachably connected. The upper mold assembly includes an upper frame body and an upper mold sheet fixed to the upper frame body. The lower mold assembly includes a lower frame body and a lower mold sheet fixed to the lower frame body. After the upper mold sheet and the lower mold sheet are aligned, a forming mold is formed. A product fixing mechanism is provided on the upper mold assembly, and the product fixing mechanism fixes the product on the upper mold sheet. It has the advantages of simple operation, streamlined processes, high production efficiency, and good product quality, and is very suitable for the production of marine sails. Moreover, it can improve the accuracy and strength of the formed product. In order to ensure the strength of the product, a progressive felt laying scheme is adopted, with progressive spreading and integral forming, eliminating the use of structural adhesive, and the strength of the product docking position can be guaranteed, thus ensuring the overall strength.

Description

Technical Field

[0001] The present invention belongs to the technical field of marine sail production, and particularly relates to a method for manufacturing a marine sail. Background Art

[0002] With the rise of FRP composite materials, at present, many components in various industries such as ships, bridges, wind power, and vehicles are replaced with FRP materials. FRP has excellent properties such as aging resistance, corrosion resistance, relatively high anisotropic strength, and good weather resistance. Due to these excellent properties, it has a wide range of application scenarios in the ship field, and marine sails also belong to the FRP material.

[0003] Currently, the manufacturing process of FRP marine sails is relatively complex, and the mold structure is also relatively complex, and the forming quality needs to be improved. Summary of the Invention

[0004] The present invention provides a method for manufacturing a marine sail, which can solve the problems pointed out in the background art.

[0005] A mold for manufacturing a marine sail includes an upper mold assembly and a lower mold assembly. The upper mold assembly and the lower mold assembly are detachably connected. The upper mold assembly includes an upper frame body and an upper mold sheet fixed on the upper frame body. The lower mold assembly includes a lower frame body and a lower mold sheet fixed on the lower frame body. After the upper mold sheet and the lower mold sheet are aligned, a forming mold is formed. A product fixing mechanism is provided on the upper mold assembly, and the product fixing mechanism fixes the product on the upper mold sheet.

[0006] Preferably, one side of the upper frame body is rotatably connected to one side of the lower frame body and is driven to rotate and turn over by a driving device.

[0007] Preferably, a plurality of bases are fixed on one side of the lower frame body, and corresponding turning pieces are provided at the corresponding positions of the upper frame body. The turning pieces are rotatably connected to the bases through rotating shafts. A driving device is provided on the base, and the movable end of the driving device is rotatably connected to the turning piece, and the other end is rotatably connected to the base.

[0008] Preferably, the driving device is a hydraulic cylinder or a pneumatic cylinder.

[0009] Preferably, the product fixing mechanism includes a main frame and a plurality of connecting frames. The main frame is lined inside the upper mold sheet and is in conformity with the inner contour of the upper mold sheet. The main frame is connected and fixed to the upper frame body through a plurality of connecting frames, and the main frame and the connecting frames are detachably connected.

[0010] Preferably, the connecting frame is a "C"-shaped connecting frame, one end of which is connected to the main frame through a bolt assembly, and the other end is connected to the upper frame body through a bolt assembly.

[0011] Preferably, a plurality of pressure heads are evenly distributed on the inner side surface of the main frame. The pressure heads are fixed at one end of the sliding columns, the other ends of the sliding columns are slidably connected to the sliding sleeves, the sliding sleeves are fixed on the main frame, and compression springs are sleeved on the sliding columns.

[0012] Preferably, a sealing strip is provided at the butting joint of the upper die piece and the lower die piece.

[0013] A manufacturing method of a marine sail is as follows:

[0014] 1. Perform a decreasing layup on the upper die piece. After the layup is completed, perform infusion molding.

[0015] 2. After a certain degree of curing, install the product fixing mechanism to fix the product on the upper die piece, start the driving device to drive the upper die piece to flip, and close and seal the upper die piece and the lower die piece.

[0016] 3. Correspondingly perform an increasing layup on the lower die piece, and perform infusion molding on the later-laid part and the joint.

[0017] 4. After complete curing, remove the product fixing mechanism, start the driving device to drive the upper die piece to flip, open the upper die piece, and demold the product.

[0018] Preferably, the infusion molding adopts the VARTM infusion molding process.

[0019] Beneficial effects: The present invention provides a manufacturing method of a marine sail, which has the advantages of simple operation, streamlined processes, high production efficiency, good product quality, etc., is very suitable for the production of marine sails, and can improve the accuracy and strength of the molded product, such as parallelism and coaxiality, etc.

[0020] In addition, in order to ensure the strength of the product, a progressive felt laying scheme is adopted, and the progressive laying is integrally formed, the use of structural adhesive is cancelled, and the strength of the product docking position can be ensured, thereby ensuring the overall strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the present invention;

[0022] Figure 2 is an opening and closing schematic diagram of the present invention;

[0023] Figure 3 is a butting sectional schematic diagram of the upper die assembly and the lower die assembly of the present invention;

[0024] Figure 4 is a structural schematic diagram of the product fixing mechanism of the present invention;

[0025] Figure 5 is a structural schematic diagram at the driving device of the present invention;

[0026] Figure 6 Schematic structural diagram of the indenter of the present invention;

[0027] Figure 7 For the present invention Figure 2 Enlarged schematic diagram at position A in - Ply diagram;

[0028] Explanation of reference numerals in the drawings:

[0029] Reference numerals in the figure: upper die assembly 1; upper frame body 11; upper die piece 12; lower die assembly 2; lower frame body 21; lower die piece 22; fixing mechanism 3; main frame 31; connecting frame 32; bolt assembly 33; indenter 34; sliding column 35; sliding sleeve 36; compression spring 37; driving device 4; base 51; flipping piece 52; rotating shaft 53; sealing strip 6. Detailed implementation manners

[0030] The following combines with the drawings to describe in detail a specific implementation manner of the present invention, but it should be understood that the protection scope of the present invention is not limited by the specific implementation manner.

[0031] Embodiment:

[0032] As Figures 1 - 7 shown, a marine sail manufacturing mold includes an upper die assembly 1 and a lower die assembly 2, the upper die assembly 1 and the lower die assembly 2 are detachably connected, the upper die assembly 1 includes an upper frame body 11 and an upper die piece 12 fixed on the upper frame body 11, the lower die assembly 2 includes a lower frame body 21 and a lower die piece 22 fixed on the lower frame body 21, after the upper die piece 12 and the lower die piece 22 are aligned, a forming mold is formed, and a product fixing mechanism 3 is provided on the upper die assembly 1, and the product fixing mechanism 3 fixes the product on the upper die piece 12.

[0033] Specifically, especially in combination with Figure 1 、 2 、5, one side of the upper frame body 11 is rotatably connected to one side of the lower frame body 21 and is driven by a driving device 4 to rotate and flip, several bases 51 are fixed on one side of the lower frame body 21, corresponding positions of the upper frame body 11 are provided with flipping pieces 52 corresponding to the bases 51, the flipping pieces 52 are rotatably connected to the bases 51 through rotating shafts 53, a driving device 4 is provided on the bases 51, the movable end of the driving device 4 is rotatably connected to the flipping piece 52, and the other end is rotatably connected to the base 51, the driving device 4 is a hydraulic cylinder or a pneumatic cylinder, and using a hydraulic cylinder or a pneumatic cylinder is easier to control the mold opening and closing processes, making the whole process more stable and better ensuring the accuracy.

[0034] Specifically, especially in combination with Figure 4 、 Figure 7As shown, the product fixing mechanism 3 includes a main frame 31 and a plurality of connecting frames 32. The main frame 31 is lined inside the upper die plate 12 and is in conformity with the inner contour of the upper die plate 12. The main frame 31 is connected and fixed to the upper frame body 11 through a plurality of connecting frames 32. The main frame 31 is detachably connected to the connecting frames 32. The connecting frames 32 are "C"-shaped connecting frames. One end thereof is connected to the main frame 31 through a bolt assembly 33, and the other end is connected to the upper frame body 11 through a bolt assembly 33.

[0035] Especially in combination with Figure 6 As shown, a plurality of pressing heads 34 are evenly distributed on the inner side surface of the main frame 31. The pressing heads 34 are fixed to one end of sliding columns 35. The other ends of the sliding columns 35 are slidably connected to sliding sleeves 36. The sliding sleeves 36 are fixed to the main frame 31. Compression springs 37 are sleeved outside the sliding columns 35. By providing a spring mechanism for buffering and fixing, it is possible to avoid the product falling off during the turnover process, ensure the stability of the fixing, improve the safety during the turnover process, and avoid excessive pressure from affecting the product.

[0036] Especially in combination with Figure 3 、 Figure 7 As shown, a sealing strip 6 is provided at the butting joint of the upper die plate 12 and the lower die plate 22 to ensure the sealing performance.

[0037] A method for manufacturing a marine sail is as follows:

[0038] 1. Perform a decreasing layup on the upper die plate 12. The decreasing layup is carried out with reference to Figure 7 for layup. After the layup is completed, perform infusion molding;

[0039] 2. After a certain curing, install the product fixing mechanism 3 to fix the product on the upper die plate 12, start the driving device 4 to drive the upper die plate 12 to turn over, and close and seal the upper die plate 12 and the lower die plate 22;

[0040] 3. Perform an increasing layup correspondingly on the lower die plate 22, and perform infusion molding on the later-laid part and the joint;

[0041] 4. After complete curing, remove the product fixing mechanism 3, start the driving device 4 to drive the upper die plate 12 to turn over, open the upper die plate 12, and demold the product.

[0042] The infusion molding adopts the VARTM infusion molding process.

[0043] The above discloses only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A manufacturing method of a marine sail, characterized in that: It includes an upper die assembly (1) and a lower die assembly (2). The upper die assembly (1) and the lower die assembly (2) are detachably connected. The upper die assembly (1) includes an upper frame body (11) and an upper die plate (12) fixed on the upper frame body (11). The lower die assembly (2) includes a lower frame body (21) and a lower die plate (22) fixed on the lower frame body (21). After the upper die plate (12) and the lower die plate (22) are aligned, a forming die is formed. A product fixing mechanism (3) is provided on the upper die assembly (1), and the product fixing mechanism (3) fixes the product on the upper die plate (12). The product fixing mechanism (3) includes a main frame (31) and a number of connecting frames (32). The main frame (31) is lined inside the upper die plate (12) and is in line with the inner contour of the upper die plate (12). The main frame (31) is connected and fixed to the upper frame body (11) through a number of connecting frames (32), and the main frame (31) is detachably connected to the connecting frames (32). The connecting frame (32) is a "C"-shaped connecting frame. One end of it is connected to the main frame (31) through a bolt assembly (33), and the other end is connected to the upper frame body (11) through a bolt assembly (33). A number of pressure heads (34) are evenly distributed on the inner side surface of the main frame (31). The pressure head (34) is fixed at one end of a sliding column (35). The other end of the sliding column (35) is slidably connected to a sliding sleeve (36). The sliding sleeve (36) is fixed on the main frame (31), and a compression spring (37) is sleeved on the sliding column (35). The specific steps are as follows: (1). Perform a decreasing layup on the upper die plate (12). After the layup is completed, perform resin infusion molding. (2). After a certain degree of curing, install the product fixing mechanism (3) to fix the product on the upper die plate (12). Start the driving device (4) to drive the upper die plate (12) to flip, and close and seal the upper die plate (12) and the lower die plate (22). (3). Correspondingly perform an increasing layup on the lower die plate (22), and perform resin infusion molding on the later-laid part and the joint. (4). After complete curing, remove the product fixing mechanism (3), start the driving device (4) to drive the upper die plate (12) to flip, open the upper die plate (12), and demold the product.

2. The manufacturing method of a marine sail according to claim 1, characterized in that: One side of the upper frame body (11) is rotatably connected to one side of the lower frame body (21), and is driven to rotate and flip by a driving device (4).

3. The manufacturing method of a marine sail according to claim 2, characterized in that: A number of bases (51) are fixed on one side of the lower frame body (21). Corresponding position on the upper frame body (11) is provided with a flipping piece (52) corresponding to the base (51). The flipping piece (52) is rotatably connected to the base (51) through a rotating shaft (53). A driving device (4) is provided on the base (51). The movable end of the driving device (4) is rotatably connected to the flipping piece (52), and the other end is rotatably connected to the base (51).

4. The manufacturing method of a marine sail according to claim 3, characterized in that: The driving device (4) is a hydraulic cylinder or a pneumatic cylinder.

5. The manufacturing method of a marine sail according to any one of claims 1-4, characterized in that: A sealing strip (6) is provided at the joint where the upper die plate (12) and the lower die plate (22) are aligned.

6. A manufacturing method of a marine sail according to any one of claims 1-4, characterized in that: The infusion molding adopts the VARTM infusion molding process.

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